The USS Courageous (NX-81822) was the first of the Courageous-class starships that saw service with the Federation Starfleet during the 24th century. Originally built as a Galaxy-class it was refitted with a tri-warp nacelle design and became the testbed for a hybridized quantum slipstream drive. Following the successful tests it entered service and was reclassifed as the first of the Courageous class. (Star Trek: The Courageous)

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